Patents by Inventor Rebecca M. Caldwell

Rebecca M. Caldwell has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Dual isolation mechanism of cementation port
    Patent number: 8727026
    Abstract: An apparatus for providing fluid communication includes a housing having a port; an inner sleeve adapted to seal the port; and a seal sleeve adapted to seal the port, wherein the seal sleeve is disposed between the inner sleeve and the housing and is movable with the inner sleeve to seal the port. In another embodiment, the port is sealed using a metal to metal seal.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: May 20, 2014
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Rebecca M. Caldwell, Christopher J. Cuffe
  • DUAL ISOLATION MECHANISM OF CEMENTATION PORT
    Publication number: 20100163253
    Abstract: An apparatus for providing fluid communication includes a housing having a port; an inner sleeve adapted to seal the port; and a seal sleeve adapted to seal the port, wherein the seal sleeve is disposed between the inner sleeve and the housing and is movable with the inner sleeve to seal the port. In another embodiment, the port is sealed using a metal to metal seal.
    Type: Application
    Filed: December 31, 2009
    Publication date: July 1, 2010
    Inventors: Rebecca M. Caldwell, Christopher J. Cuffe